Nonglare attachment for headlight lamps



Feb. 8 1927.

l 1,617,292 R. P. MccuRDY ETAI.

NonaLAaE ATTAGHMENT Fon HEADLIGHT murs Filed May 23, 1924 i 3110 of), w

uiteen e130- Patented Feb. 8, 1927.

UNITED STATES PATENT OFFICE.

ROBERT P. MCCURDY, OF IITTSBU'RGH, PENNSYLVANIA, AND FREDERICK W. HOCH-hSTIE'JITIEIR., O F DAYTON, PENNSYLVANIA.

OHIO, ASSIGNORS TO JOSEPH C. TREES, 0F PITTSBURGH,

NONGLABE ATTACHMENT FOR HEADLIGHT LAMPS.

Application led May 23, 1924. Serial No. 715,407.

The object of this invention is to provide an electric bulb filamentlamp with a simple detachable non-glare shield of such structure that itmay be attachedto the standard sizes of this type of lamp, as more fullyhereinafter set forth.

In the' drawing- Fi l is a rear end View of a lamp bulb provided withone form of our attachment;

Fig. 2 is a side elevation of Fig..1;

Figs-3 and 4 are views similar to Figs. l and 2, respectively, showingour attachment adapted to a lamp bulb that is supported in ahorizontalposition in a headlight.

In Figs. 1 and 2 we show a form ot' device which is adapted to supportthe non-glare shield 5 at'one side of the bulb. This is for, use inheadlights in Vwhich the bulb is supported in a vertical position, tothereby present one Vside of the lamp to the lfront open side of theheadlight. The supportfoi.

thelshield is so constructed that it will sup-.-

port the shield at the front side of the lamp, in such position that itwill be practical y impossiblefor a person standing in front of theheadlight to get a direct View of the lilament. In this way, an observerin front of the headlight will be prevented from being blinded from therays of light from the filament. The shield is translucent so that verylittle of the illuminating power of the lz'mp is lost.

The shield 5 may be made of any translu` cent material. Tinted or etchedglass will answer, and even a fine wire mesh screen,

known as a mosaic screen, will serve our purpose. In the illustratedexample of our invention, the screen is shown as circular Vand isfastened to a circular wire ring 6.. the ends of the ring being turnedlaterally to form arms 6 which are twisted together at 7 to therebyenable the two free ends of `the wire to be formed into a pair of curvedclamping arms 8 which are shaped to hug the cylindrical base or neckv ofthe lamp.

The arms 8 are springy so as to be snapped on or oft' the neck of thelamp, thereby ren-' dering't-he device attachable to and detachable fromthe standard headlight lamp.

In Figs.' 3 and 4, the shield-support is constructed so as tosupport theshield in front of the tip of the bulb. This form of device is adaptedfor use with those lamps which are supportedin a. horizontal position inthe headlight, with their tips point. ing forwardly. Toadapt the wiresupport for this type of lamp, it will be simply necessary to use longerwire arms 6 and curve them so that the clamp-arms ,8 will hug. the neckof the lamp at the junction thereof with the bulb.

that we claim as new is:

A non-glare attachment for electric lamp? bulbs embodying'a non-glareglass disk and -a wire'support for detachably attaching the same tothelamp coiixsisting of a single Wire bent midway its length to form anencircling frame for'permanently clamping thc rim of said non-glareshield, the two parts of the wire extendedl away rom'said disk and thenbrought together andtwisted upon each other at a point distant lfrom`their extremities, said two free extremities being spread apart to forma two-arm -springzlasp for engagement with the neck of the amp. Y

In `testimony whereof we hereunto alix our signatures this 22nd day ofMay 1924.

ROBERT P. MCCURDY.

.FREDERICK W. `HOCHSTETTIIR.

